2-part PUR matt coloured seal coat part of the Sika Comfortfloor range

Transcription

1 Product Data Sheet Edition 11/07/14 Identification no: (Template for local translation, only for internal use) Sikafloor -305 W 2-part PUR matt coloured seal coat part of the Sika Comfortfloor range Product Description Uses Characteristics / Advantages Sikafloor -305 W is a two part water based, low VOC, polyurethane, coloured matt seal coat. Matt coloured seal coat for Sika ComfortFloor -Systems Matt coloured seal coat for smooth Sikafloor polyurethanes, like SR-326 Matt coloured seal coat for smooth Sikafloor Economy line Epoxies Water based Very low odour Good UV resistance, non-yellowing Easy to clean Test Approval / Standards Coating for concrete protection according to the requirements of EN :2004 and the EN 13813:2002, DoP certified by Factory Production Control Body, 0620 and provided with the CE-mark. Product Data Form Appearance / Colours Eurofins Emission tested according to the AgBB-scheme and guidelines of the DiBt (AgBB Committee for Health-related Evaluation of Building Products, DiBt German Institute for Building Technology). Sampling, testing and evaluation were performed according to ISO-16000, Report No D. Fire classification acc. to EN , Test reports , and CR /1, Ghent University Sikafloor -305 W is matt after final curing. Available in various colour shades and as substrates for local tinting. Be aware that the colour of the Sikafloor base layer has to be approx. adjusted to the colour of the Sikafloor -305 W. With bright colours it may be necessary to apply several coats of Sikafloor -305 W. Packaging Part A: 8.5 kg Part B: 1.5 kg Part A+B: 10.0 kg ready to mix units 1 1/7

2 Storage Storage Conditions / Shelf Life Part A: 6 months from date of production Part B: 12 months from date of production If stored properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 C and +30 C. Technical Data Chemical Base PUR Density Part A: ~ 1.33 kg/l Part B: ~ 1.13 kg/l Mixed Resin: ~ 1.18 kg/l (diluted with 7 % Water) All Density values at +23 C. Resistance Chemical Resistance USGBC LEED Rating System Information System Structure Resistant to many chemicals. Please ask for a detailed chemical resistance table. Sikafloor -305 W conforms to the requirements of LEED EQ Credit 4.2: Low- Emitting Materials: Paints & Coatings EPA Reference Test Method 24 VOC Content < 100 g/l Sealing of Sika ComfortFloor, Sika ComfortFloor Pro: Base coat: Sikafloor -330 Coloured matt seal coat: 1-2 x Sealing of Sikafloor tough elastic Polyurethanes: Base coat: Sikafloor -328 / -327 / -326 Coloured matt seal coat: 1-2 x Sealing of Sika f loor -* 263SL : Base coat: Sikafloor -263 SL Coloured matt seal coat: 1-2 x Sikafloor -305 W Before applying Sikafloor -305 W on an epoxy surface, the surface has to be sanded with a 3M pad ( green) to remove possible carbamation which has a negative influence on the adhesion. Application Details Consumption / Dosage Coating System Product Consumption Sealing of smooth surfaces Sikafloor -305 W ca kg/m²/layer These figures are theoretical and do not allow for any additional material due to surface porosity, surface profile, variations in level and wastage etc. Lower consumption can cause roller marks, gloss differences and irregular surface structure, higher consumption result in water retention and can cause pigment floating When used in high wear conditions, for example where rolling office chairs occur, a double layer Sikafloor -305 W is highly advisable, as a double layer is increasing the mechanical strength of the system and it resistance against office chairs particularly. 2/7

3 Substrate Quality Substrate Preparation The substrate must be clean, dry and free of all contaminants such as dirt, oil, grease, coatings and surface treatments, etc. Pull-off strength must be not less than 1.5 N/mm². If in doubt, apply a test area first. All dust, loose and friable material must be completely removed from all surfaces before application of the product, preferably by brush or vacuum. Epoxy surfaces must be sanded with green 3M pad to ensure proper adhesion. Application Conditions / Limitations Substrate Temperature Ambient Temperature Relative Air Humidity Dew Point +10 C min. / +30 C max. +10 C min. / +30 C max. 75% max. During curing the humidity should not exceed 75 % max. Adequate fresh air ventilation must be provided to remove the excess moisture from the curing product. Beware of condensation! The substrate and uncured floor must be at least 3 C above the dew point to reduce the risk of condensation or blooming on the floor finish. application Instructions Mixing Mixing Time Part A : part B = 85 : 15 (by weight) Prior to mixing, stir part A mechanically. When all of part B has been added to part A, mix continuously for 3 minutes until a uniform mix has been achieved. To ensure thorough mixing pour materials into another container and mix again to achieve a consistent mix. Add 5 to 7% clean water and mix continuously for 1 minute. Wait one minute and then mix it up again for one minute. The adding of water must be the same in every mix, if not it could slightly influence the colour and the texture. Check the mixing result and the absence of lumps or agglomerates on a mixing blade. Over mixing must be avoided to minimise air entrainment. Mix Ratio of A : B = 85 : 15 by weight Mixing Tools must be thoroughly mixed using a low speed electric stirrer ( rpm) or other suitable equipment. 3/7

4 Application Method / Tools Prior to application confirm relative air humidity and dew point. Divide the area to be coated into parts for the number of A + B units, to have consumption under control and to know how far to paint with each A + B mixture. When starting to coat, make sure the coating rollers are well saturated with coating. If this is not the case, small air bubbles will be visible at the overlaps. The rollers should be wetted in the first area, which should be taken into account by pouring out some more material. The roller will absorb approx kg coating depending on size of the roller (25cm or 50cm). With a small quantity mixed product, pre-coat the edge areas with brush and small 10cm roller. But never go further ahead than 10 minutes to the regular rolling, to obtain minimal visibility. Within the pot-life (as soon as possible) depending on the temperature 20 min (30 C) 40 min (10 C) the product is poured and spread out on the substrate under observation of the coverage rate (+/ g/m 2 ). Attention: the end of the pot-life is not noticeable! After pouring out, the material has to be spread in the pouring direction with nylon roller having a fibre length of approximately 12-13mm and with the same roller cross to pouring direction, covering approx m wide not overlapping the former lane, and backwards covering approx m with an overlap of less than 5 cm. Then extend the overlap, in a calm way to approx.. 10 cm. See to it that no glittering shiny spots will be left in the finished paint layer caused by paint pick-up from the surface by the roller. Lift the roller at the end of the roll to minimize the change of roller-marks. For the best result, go after having done 2 laps, through the wet coating using stump spike shoes. Roll with a larger 50 cm roller in one direction cross the working direction. By doing so, lap-marks are fully eliminated. Depending on the room size use a 25cm only very small areas - or 50cm coating roller. Clean all tools and application equipment with water immediately after use. Hardened and/or cured material can only be removed mechanically. A seamless finish can be achieved if a wet edge is maintained during application. This means that the coating overlap should always occur with wet coating on wet coating. Spray application: Sikafloor -305 W can also be airless spray applied, e.g with a Airless- Membranpump SF 31 Wagner, tube length 15 m, inside diameter 6 mm, Jet 319, a white filter and a pressure of 180 bar (Machine) When applying on an epoxy surface, the floor has to be sanded with preferably, a green 3M pad to secure a proper adhesion. Cleaning of Tools Clean all tools and application equipment with water immediately after use. Hardened and/or cured material can only be removed mechanically. 4/7

5 Potlife Temperature +10 C +20 C +30 C Time ~ 80 minutes ~ 60 minutes ~ 30 minutes Caution: End of potlife is not noticeable. Waiting Time / Overcoating Before applying Sikafloor -305 W on Sikafloor -330 / 328 / 327 / 326 / 263SL allow: Substrate temperature Minimum Maximum +10 C 24 hours 72 hours +20 C 18 hours 48 hours +30 C 12 hours 36 hours Before applying Sikafloor -305W on Sikafloor -305W alow: Substrate temperature Minimum Maximum +10 C 24 hours 4 days +20 C 16 hours 3 days +30 C 12 hours 2 days Based on RH max. 70% and good ventilation. When outside the application window, light sanding with green 3M pad to prepare. Times are approximate and will be affected by changing ambient conditions particularly temperature and relative humidity. Notes on Application / Limitations Freshly applied Sikafloor -305 W must be protected from damp, condensation and water for at least 7 days (+20 C). Unevenness of substrates as well as inclusions of dirt cannot be covered by thin sealers coats. Therefore substrate and adjacent areas must be cleaned thoroughly prior to application. When applying on an epoxy surface, the floor has to be sanded with preferably, a green 3M pad to secure a proper adhesion. Tools Electric drill, mixing-blade, brushes and nylon rollers with a fibre length of ~12-13 mm and a width of 10 up to 70 cm for surface area amount depending on size of floor). Roller frames and telescopic extension handles, tape and spatula. Plastic sheeting for placement of wet rollers. If heating is required do not use gas, oil, paraffin or other fossil fuel heaters, these produce large quantities of both CO 2 and H 2O water vapour, which may adversely affect the finish. For heating use only electric powered warm air blower systems. Curing Details Applied Product ready for use Temperature Foot traffic Light traffic Full cure +10 C ~ 30 hours ~ 48 hours ~ 6 days +20 C ~ 16 hours ~ 24 hours ~ 4 days +30 C ~ 12 hours ~ 18 hours ~ 3 days Note: Times are approximate and will be affected by changing ambient conditions. 5/7

6 Cleaning / Maintenance Methods To maintain the appearance of the floor after application, must have all spillages removed immediately and be regularly cleaned. Please refer to the General maintenance tips and recommended cleaning procedures for the Sika ComfortFloor Systems. Initial cleaning: Before using your Sikafloor-305W topcoated floor, Firstly, you should sweep the area to remove any loose debris. Scrub with a red pad and wet vacuum the soiled solution. Rinse with clean water and wet vacuum. Let dry thoroughly. Advised product: TASKI Jontec 300, Smartdose or if extremely dirty from contracting debris, use Taski Jontec Deepstrip. Looking After Your Floor: If the correct cleaning and maintenance schedule is used the appearance of your floor can be easily maintained. Dust Cleaning... should be done regularly with for example the Taski Lamello system, a professional dust moppingframe, especially designed for the effective removal of dust using a dust-binding mop (without oil containing material!). Sand and dust act as abrasives and render a floor slippery and glossy. Regular removal of sand and dust greatly improves the durability of your Sika Comfortfloor. Manual standard wet cleaning... can be done regularly by mopping. Use the Jontec 300 SD ph-neutral (ph 7) detergent that does not leave a wax film. Use a damp microfiber mop consisting of a lightweight handle with a very manoeuvrable flat rectangular head. Machine standard wet cleaning... can be done regularly by auto scrubber or low speed single disk machine. Use the Jontec 300 SD ph-neutral (ph 7-7,5) detergent that does not leave a wax film and has low foaming properties when used in a scrubbing machine. For daily cleaning a Red 3M polyester floor-pad with high dirt absorbing properties for removal of dirt and stripes, without polishing the floor. 6/7

7 Value Base All technical data stated in this Product Data Sheet are based on laboratory tests. Actual measured data may vary due to circumstances beyond our control. Local Restrictions Please note that as a result of specific local regulations the performance of this product may vary from country to country. Please consult the local Product Data Sheet for the exact description of the application fields. Health and Safety Information Legal Notes For information and advice on the safe handling, storage and disposal of chemical products, users shall refer to the most recent Material Safety Data Sheet containing physical, ecological, toxicological and other safety-related data. The information, and, in particular, the recommendations relating to the application and end-use of Sika products, are given in good faith based on Sika's current knowledge and experience of the products when properly stored, handled and applied under normal conditions in accordance with Sika s recommendations. In practice, the differences in materials, substrates and actual site conditions are such that no warranty in respect of merchantability or of fitness for a particular purpose, nor any liability arising out of any legal relationship whatsoever, can be inferred either from this information, or from any written recommendations, or from any other advice offered. The user of the product must test the product s suitability for the intended application and purpose. Sika reserves the right to change the properties of its products. The proprietary rights of third parties must be observed. All orders are accepted subject to our current terms of sale and delivery. Users must always refer to the most recent issue of the local Product Data Sheet for the product concerned, copies of which will be supplied on request. It may be necessary to adapt the above disclaimer to specific local laws and regulations. Any changes to this disclaimer may only be implemented with permission of Sika Corporate Legal in Baar. Sika Services AG Tüffenwies 16 CH-8048 Zurich Switzerland Phone Telefax /7